CN218477100U

CN218477100U - Double-screw extruder for powder coating production

Info

Publication number: CN218477100U
Application number: CN202222793690.3U
Authority: CN
Inventors: 王曲强
Original assignee: Zhejiang Zhanyong Industry And Trade Co ltd
Current assignee: Zhejiang Zhanyong Industry And Trade Co ltd
Priority date: 2022-10-21
Filing date: 2022-10-21
Publication date: 2023-02-14
Anticipated expiration: 2032-10-21

Abstract

The utility model discloses a double screw extruder is used in powder coating production aims at solving current double screw extruder and has the broken effort difference of extrusion that inside material received, influences the problem of coating quality. The key points of the technical scheme are as follows: including the frame and locate the main part in the frame, seted up pan feeding mouth and play material seat in the main part, be equipped with the stirring subassembly in the main part on the one side that is close to the pan feeding mouth, the main part internal rotation is connected with the reaction jar, and the reaction jar outside is equipped with the profile of tooth strip, is equipped with the annular groove that supplies the profile of tooth strip to put into in the main part, and the frame bottom is equipped with and is used for driving reaction jar pivoted drive assembly. The utility model relates to a powder coating production facility technical field utilizes drive assembly to drive the reaction jar for the material can be rotated in reaction jar and the reaction jar, makes in the main part coating by even processing, improves the coating quality.

Description

Double-screw extruder for powder coating production

Technical Field

The utility model relates to a powder coating production facility technical field, more specifically says that it relates to double screw extruder for powder coating production.

Background

Thermosetting powder paint is one kind of hard coating formed with thermosetting resin as film forming matter and curing agent added for crosslinking reaction and through heating. The temperature is higher and the coating does not soften as much as the thermoplastic coating but only decomposes. Because the resin adopted by the thermosetting powder coating is a prepolymer with lower polymerization degree and lower molecular weight, the leveling property of the coating is better, the coating has better decoration, and the prepolymer with low molecular weight can form reticular cross-linked macromolecules after being cured, so the coating has better corrosion resistance and mechanical property. Thermosetting powder coatings have developed particularly rapidly.

The double-screw extruder is thermosetting powder production equipment developed on the basis of a single-screw extruder, and has the characteristics of good feeding performance, mixing and plasticizing performance, exhaust performance, extrusion stability and the like, so that the double-screw extruder is widely applied to molding processing of extruded products at present.

In current double screw extruder, the cavity and the screw rod position that supply the material to put into can not change, and then the distance that leads to different positions in the cavity and screw rod also can be different, and then the broken effort of extrusion that leads to the material of different positions in the cavity to receive is different, and the material is to the diffusion inefficiency of box inner wall direction for the heated effect of material is not good, reduces and extrudes the quality, influences the dispersibility after the coating output and has the colour difference.

Therefore, a new solution is needed to solve this problem.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a double screw extruder is used in powder coating production utilizes drive assembly to drive the reaction cylinder for material can be rotated in reaction cylinder and the reaction cylinder, makes in the main part coating by even processing, improves the coating quality.

The above technical object of the present invention can be achieved by the following technical solutions: double screw extruder is used in powder coating production, main part in including the frame and locating the frame, pan feeding mouth and play material seat have been seted up in the main part, be equipped with the stirring subassembly in the main part on one side that is close to the pan feeding mouth, the main part internal rotation is connected and is reacted the jar, the reaction jar outside is equipped with the profile of tooth strip, be equipped with the annular that supplies the profile of tooth strip to put into in the main part, the frame bottom is equipped with and is used for driving reaction jar pivoted drive assembly.

By adopting the technical scheme, after the equipment is started, the driving assembly drives the reaction cylinder to rotate in the main body, meanwhile, the stirring assembly is started to play a role in stirring materials in the reaction cylinder, the materials can move towards the reaction cylinder under the driving of the stirring assembly after entering from the feeding port, and are extruded from the discharging seat after being heated by the inner side wall of the main body and stirred by the stirring assembly to form a long strip; under drive assembly's drive, the reaction jar will take place to rotate in the main part for the material in the reaction jar rotates along with the reaction jar, and then guarantees that each region in the reaction jar can both be by the even stirring of agitating unit, avoids appearing material processing inhomogeneous, the poor problem of chromatic aberration and dispersibility.

The utility model discloses further set up to: the driving assembly comprises a first motor fixedly connected to the bottom end of the rack and a driving wheel fixedly connected to an output shaft of the first motor, and the driving wheel is meshed with the toothed bars.

By adopting the technical scheme, after the first motor is started, the driving wheel drives the toothed strips in the reaction cylinder, and the toothed strips and the driving wheel can directly rotate due to the arrangement of the annular groove in the main body, so that the motor can smoothly drive the reaction cylinder to rotate.

The utility model discloses further set up to: a gap is arranged between one side of the reaction cylinder, which is far away from the discharging seat, and the main body, and the bottom end of the gap of the main body is fixedly connected with a supporting plate.

By adopting the technical scheme, the distance arranged between the reaction cylinder and the main body can prevent the reaction cylinder which is rotatably connected in the main body from influencing the feeding of the equipment, and the abutting plate arranged at the bottom end of the main body can prevent the height difference between the main body and the reaction cylinder caused by the existence of the distance, so that the materials can not be discharged after being stacked in the distance by gravity.

The utility model discloses further set up to: the stirring subassembly includes the second motor of fixed connection on the main part lateral wall, the second motor is located the main part and is close to one side of pan feeding mouth, the interlayer has been seted up in the main part, the interlayer internal rotation is connected with first gear and second gear, second motor output shaft runs through the main part until the interlayer in, second motor output shaft is in the interlayer fixedly connected with moving gear, moving gear meshes with first gear, second gear respectively, the first threaded rod of fixedly connected with on the first gear, first threaded rod runs through the setting of interlayer lateral wall, fixedly connected with second threaded rod on the second gear, the second threaded rod runs through the setting of interlayer lateral wall.

By adopting the technical scheme, the arrangement of the cavity can protect the counter gear, the first gear and the second gear, and prevent dust and particles from entering and influencing the service life of parts; under the driving action of the second motor, the first gear and the second gear are driven to rotate, so that the first threaded rod and the second threaded rod can be driven to apply acting force to materials in the reaction cylinder, equipment processing can be guaranteed to be carried out smoothly, the first threaded rod and the second threaded rod are limited in the main body, and the reaction cylinder has enough supporting force in the rotating process of the first threaded rod and the second threaded rod.

The utility model discloses further set up to: the centers of the circles of the moving gear, the first gear and the second gear are on the same straight line.

Through adopting above-mentioned technical scheme, first gear, second gear and moving gear set up on same straight line for distance between first threaded rod, the second threaded rod can the maximize, and then improves extrusion scope and extrusion efficiency.

The utility model discloses further set up to: the discharging seat and the main body are integrally formed, a groove is formed in the discharging seat, the groove is arranged in a conical shape, and a discharging hole is formed in the center of the discharging seat.

By adopting the technical scheme, the discharging seat and the main body are integrally formed, and after the materials are processed and taken out through the first threaded rod and the second threaded rod, the grooves formed in the circular grooves can smoothly push the materials out, so that the extruder can push the materials out more smoothly; the discharge port is arranged to help the material to be molded so as to ensure the shape of the material when the material is discharged.

The utility model discloses further set up to: guide blocks are arranged on the two top ends of the abutting plate, and a guide plate is fixedly connected to the abutting plate.

By adopting the technical scheme, the guide block on the supporting plate can enable the supporting plate to be arc-shaped, so that materials are prevented from being accumulated on two sides of the guide block; the setting of guide plate will help the material can be more quick to the reaction jar removal.

The utility model discloses further set up to: the reaction cylinder is provided with a connecting ring, and the connecting ring is connected in the annular groove in a sliding manner.

Through adopting above-mentioned technical scheme, make the connectivity between main part and the reaction jar stronger through the setting of annular groove, avoid the sleeve to receive external force influence and take place to jolt by the drive in-process, will further react the jar through the setting of annular groove and restrict.

To sum up, the utility model discloses following beneficial effect has:

the reaction cylinder is driven by the driving assembly, so that the reaction cylinder and materials in the reaction cylinder can be rotated, the coating in the main body is uniformly processed, and the quality of the coating is improved; meanwhile, the guide block and the guide plate arranged on the abutting plate and the abutting plate can guide materials, and the situation that the materials cannot be smoothly close to the discharging seat due to the arrangement of the reaction cylinder is avoided.

Drawings

Fig. 1 is an external structure diagram of the present invention;

FIG. 2 is a first schematic view of the internal structure of the present invention;

FIG. 3 is a second schematic view of the internal structure of the present invention;

fig. 4 is a third schematic view of the internal structure of the present invention;

fig. 5 is a schematic diagram of the internal structure of the present invention.

In the figure: 1. a frame; 2. a main body; 3. a feeding port; 4. a discharging seat; 5. a stirring assembly; 51. a second motor; 52. an interlayer; 53. a first gear; 54. a second gear; 55. a moving gear; 56. a first threaded rod; 57. a second threaded rod; 6. a reaction cylinder; 7. a toothed strip; 8. a first motor; 9. a driving wheel; 10. a resisting plate; 11. a groove; 12. a discharge port; 13. a guide block; 14. a guide plate.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the following detailed description of the present invention is made with reference to the accompanying drawings and specific embodiments, and it is to be noted that the embodiments and features of the embodiments of the present invention can be combined with each other without conflict.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like, are to be interpreted broadly, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

As shown in fig. 1-5, the double-screw extruder for producing the powder coating comprises a frame 1 and a main body 2 arranged on the frame 1, wherein the main body 2 is provided with a feeding port 3 and a discharging seat 4, one side of the main body 2 close to the feeding port 3 is provided with a stirring assembly 5, the main body 2 is rotatably connected with a reaction cylinder 6, the outer side of the reaction cylinder 6 is provided with a toothed strip 7, the main body 2 is provided with an annular groove for placing the toothed strip 7, and the bottom end of the frame 1 is provided with a driving assembly for driving the reaction cylinder 6 to rotate; the driving assembly comprises a first motor 8 fixedly connected to the bottom end of the rack 1 and a driving wheel 9 fixedly connected to an output shaft of the first motor 8, and the driving wheel 9 is meshed with the toothed strip 7; a space is arranged between one side of the reaction cylinder 6 far away from the discharging seat 4 and the main body 2, and a butting plate 10 is fixedly connected to the bottom end of the space of the main body 2; the discharging seat 4 and the main body 2 are integrally formed, a groove 11 is arranged in the discharging seat 4, the groove 11 is arranged in a conical shape, and a discharging hole 12 is arranged at the center of the discharging seat 4; the two top ends of the resisting plate 10 are provided with guide blocks 13, and the resisting plate 10 is fixedly connected with a guide plate 14; the supporting plate 10 is provided with an annular groove, the reaction cylinder 6 is provided with a connecting ring, and the connecting ring is connected in the annular groove in a sliding manner.

As shown in fig. 2-4, the stirring assembly 5 includes a second motor 51 fixedly connected to a side wall of the main body 2, the second motor 51 is disposed at a side of the main body 2 close to the material inlet 3, a partition 52 is formed in the main body 2, a first gear 53 and a second gear 54 are rotatably connected to the partition 52, an output shaft of the second motor 51 penetrates through the main body 2 and reaches the partition 52, an output shaft of the second motor 51 is disposed in the partition 52 and is fixedly connected with a moving gear 55, the moving gear 55 is respectively engaged with the first gear 53 and the second gear 54, a first threaded rod 56 is fixedly connected to the first gear 53, the first threaded rod 56 penetrates through a side wall of the partition 52, a second threaded rod 57 is fixedly connected to the second gear 54, and the second threaded rod 57 penetrates through a side wall of the partition 52; the centers of the moving gear 55, the first gear 53 and the second gear 54 are on the same straight line.

The working principle is as follows: after the materials are poured into the device, the coating material will roll towards the reaction cylinder 6 along the guide block 13 and the guide plate 14, after the device is started, the main body 2 will heat up the side wall of the reaction cylinder 6, the first motor 8 rotates, and the reaction cylinder 6 is driven to rotate in the main body 2 through the engagement between the driving wheel 9 and the toothed strip 7 on the reaction cylinder 6, meanwhile, after the second motor 51 is started, the moving gear 55 connected with the output shaft of the second motor 51 in the interlayer 52 can drive the first gear 53 and the second gear 54 to rotate, so that the first gear 53 and the second gear 54 can drive the first threaded rod 56 and the second threaded rod 57, and when the materials in the main body 2 are stirred by the first threaded rod 56 and the second threaded rod 57, the reaction cylinder 6 drives the materials to rotate relative to the main body 2, so that the materials in the reaction cylinder 6 can be uniformly processed and then be guided by the discharge seat 4 and discharged from the discharge port 12, so that the quality of the coating material can be improved.

The setting of annular groove can be through making the connectivity between main part 2 and the reaction jar 6 stronger, avoids the sleeve to be influenced and take place to jolt by external force at the in-process of being driven, will further restrict reaction jar 6 through the setting of annular groove.

Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. Double screw extruder is used in powder coating production, including frame (1) and main part (2) of locating on frame (1), its characterized in that: seted up pan feeding mouth (3) and play material seat (4) on main part (2), be equipped with stirring subassembly (5) on main part (2) the one side that is close to pan feeding mouth (3), main part (2) internal rotation is connected with reaction jar (6), reaction jar (6) outside is equipped with profile of tooth strip (7), be equipped with the annular that supplies profile of tooth strip (7) to put into on main part (2), frame (1) bottom is equipped with and is used for driving reaction jar (6) pivoted drive assembly.

2. The twin-screw extruder for powder coating production as claimed in claim 1, wherein: the driving assembly comprises a first motor (8) fixedly connected to the bottom end of the rack (1) and a driving wheel (9) fixedly connected to an output shaft of the first motor (8), and the driving wheel (9) is meshed with the toothed bar (7).

3. The twin-screw extruder for powder coating production as claimed in claim 2, wherein: a gap is arranged between one side of the reaction cylinder (6) far away from the discharging seat (4) and the main body (2), and a butting plate (10) is fixedly connected to the bottom end of the gap of the main body (2).

4. The twin-screw extruder for powder coating production according to claim 1, characterized in that: stirring subassembly (5) is including second motor (51) of fixed connection on main part (2) lateral wall, main part (2) one side that is close to pan feeding mouth (3) is located in second motor (51), division layer (52) have been seted up in main part (2), division layer (52) internal rotation is connected with first gear (53) and second gear (54), second motor (51) output shaft runs through main part (2) until in division layer (52), second motor (51) output shaft is in division layer (52) internal fixed connection has moving gear (55), moving gear (55) respectively with first gear (53), second gear (54) meshing, fixedly connected with first threaded rod (56) on first gear (53), first threaded rod (56) run through division layer (52) lateral wall setting, fixedly connected with second threaded rod (57) on second gear (54), second threaded rod (57) run through division layer (52) lateral wall setting.

5. The twin-screw extruder for powder coating production according to claim 4, characterized in that: the centers of the moving gear (55), the first gear (53) and the second gear (54) are on the same straight line.

6. The twin-screw extruder for powder coating production as claimed in claim 1, wherein: the discharging seat (4) and the main body (2) are integrally formed, a groove (11) is formed in the discharging seat (4), the groove (11) is arranged in a conical shape, and a discharging hole (12) is formed in the center of the discharging seat (4).

7. The twin-screw extruder for powder coating production according to claim 3, characterized in that: the guide plates (13) are arranged at the two top ends of the abutting plate (10), and the guide plates (14) are fixedly connected to the abutting plate (10).

8. The twin-screw extruder for powder coating production according to claim 7, characterized in that: the supporting plate (10) is provided with an annular groove, the reaction cylinder (6) is provided with a connecting ring, and the connecting ring is connected in the annular groove in a sliding manner.